High pressure centered just off the coast in the Pacific will be the dominant impact on our forecast in northern Californai over the next several days. Sunny to mostly sunny skies, a substantial warming trend and dry weather can be expected on Friday and through this weekend. Skies are mostly clear over northern California for the start of our Friday and will be sunny to mostly sunny today. Temperatures are starting out in the 40's to 50's in the valley and foothills, and in the 20's to 30's in most mountain areas this morning. A Frost Advisory will be in effect through 9am in Trinity County, so you may want to give yourselt an extra minute or two to scrape your windshield before you head out on the road in that area early today. Winds will be out of the north up to 15mph, with gusts up to 20mph today. The breezy north winds paired with the dry conditions will be a concern for elevated fire danger, so it's advised you stay cautious. High temperatures are projected to end up in the low to mid 80's in the valley, mid 60's to mid 70's in the foothills, and lower 60's to upper 70's in our mountain zones on Friday afternoon.
The high pressure off the coast of northern California will build into our region through this weekend, and will result in temperatures becoming much warmer over the next couple of days. Valley and foothill areas will dip into the 40's to mid 50's over the next several mornings, while mountain areas bottom out in the 30's to 40's. High temperatures are projected to top out in the mid to high 80's in the valley on Saturday, and upper 80's to lower 90's on Sunday and Monday. Foothill and mountain zones will end up in the 70's to lower 80's from Saturday through Monday. Skies will stay sunny through Sunday, but we'll have some clouds moving in on Monday. Low pressure to our east will bring those clouds back into our forecast next week, and will also result in temperatures dropping by several degrees on Tuesday. There will also be a chance for mountain showers in the Sierra from Tuesday through Thursday of your extended forecast. Temperatures will mostly be in the low to mid 80's in the valley and 60's to 70's in the foothills and mountains from Tuesday through the remainder of next week.